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<?php function func($a){ $a[0]=10; } $a=array(1, 2, 3, 4); print_r($a); func($a); print_r($a);
Output for 4.3.0 - 7.1.7
Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 ) Array ( [0] => 1 [1] => 2 [2] => 3 [3] => 4 )